This was mostly aimed at the various ways the XML document may or may not conform to any number of XSD types. What we 'see' as a table might not be described an

This was mostly aimed at the various ways the XML document may or may not conform to any number of XSD types. What we 'see' as a table might not be described and stored as a table in the same way in XML. And with XML I mean whatever XML office (the one from microsoft) generates. A 6000-page spec and attributes that specify if the data is tabular data based on various properties (be it columns and rows or just plain text with start and stop pointers) and then may or may not render it visually as a table is error prone, even on first-party implementations (first-party desktop versions within Windows vary, as wel as on macOS, Android, iOS and their web offering). If there was one simple data structure describing the table and all other aspects being optional, then yes, a XML based format is easier than OCR. But that's not the case I was pointing at.